Fix typo issues

Signed-off-by: Xiaokang Qian <xiaokang.qian@arm.com>
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index d371026..2de5231 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -262,7 +262,7 @@
         return mbedtls_ssl_session_set_hostname( dst,
                                                  src->hostname );
     }
-#endif
+#endif /* MBEDTLS_SSL_PROTO_TLS1_3 && MBEDTLS_SSL_SERVER_NAME_INDICATION */
 #endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_CLI_C */
 
 #if defined(MBEDTLS_X509_CRT_PARSE_C)
@@ -2022,8 +2022,6 @@
     memcpy( p, session->resumption_key, session->resumption_key_len );
     p += session->resumption_key_len;
 
-
-
 #if defined(MBEDTLS_HAVE_TIME) && defined(MBEDTLS_SSL_SRV_C)
     if( session->endpoint == MBEDTLS_SSL_IS_SERVER )
     {